There are practically no sidewalks in GH! Please KI take notice!!! Having to flee every 5 seconds is extremely annoying!
-Jordan Jadecaster Magus Diviner level 32
It has always been the general rule that if you hug the outside areas where monsters are you are safe, Grizzlehiem does have it spots where even that requires you to wait for pass somewhat like Marleybone.
There are trails in most areas, otherwise it is up to you to learn to maneuver through and around other areas, via observation, timing and hugging walls. Why flee so much? Port stones are abundant and xp is always a good thing, plus if you finish battle it makes you immune from getting pulled in for several seconds allowing you to move past other street enemies/battles quickly.